Ones again Amavis stopped working without any visible reason.
(No updates/upgrades anything.)

zmcontrol status sais...
zmclamdctl is not running
(Seems there is all ready an instance running?)

How about some information from the log files? What happens if you try to restart it - does it run OK or fail and if it fails what are the log entries? How much RAM is on this system? Is this a Network Edition or Open Source install?

Originally Posted by SamTzu

I had to go to admin panel and disable Antivirus and manually reque all the mail to get all the queues empy.

That is the normal thing to get the mail from the deferred queue.

Originally Posted by SamTzu

I don't want to sound like I'm whining (except I am) but the spam/virus filtering on Zimbra seems to be too unstable.